GB1297628A - - Google Patents
Info
- Publication number
- GB1297628A GB1297628A GB1297628DA GB1297628A GB 1297628 A GB1297628 A GB 1297628A GB 1297628D A GB1297628D A GB 1297628DA GB 1297628 A GB1297628 A GB 1297628A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signals
- rate
- change
- output
- differentiating circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/44—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to the rate of change of electrical quantities
- H02H3/445—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to the rate of change of electrical quantities of DC quantities
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for dc systems
Landscapes
- Dc Digital Transmission (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2570669 | 1969-05-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1297628A true GB1297628A (ru) | 1972-11-29 |
Family
ID=10231979
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1297628D Expired GB1297628A (ru) | 1969-05-20 | 1969-05-20 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1297628A (ru) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011141052A1 (en) * | 2010-05-11 | 2011-11-17 | Abb Technology Ag | A plant for transmitting high voltage dc electric power including overvoltage protection |
WO2011157305A1 (en) * | 2010-06-14 | 2011-12-22 | Abb Research Ltd | Fault protection of hvdc transmission lines |
WO2013127438A1 (en) | 2012-02-28 | 2013-09-06 | Abb Technology Ltd | A method and an apparatus for detecting a fault in an hvdc power transmission system |
CN112345882A (zh) * | 2020-10-14 | 2021-02-09 | 云南电网有限责任公司文山供电局 | 一种基于模糊推理系统的快速故障检测方法 |
-
1969
- 1969-05-20 GB GB1297628D patent/GB1297628A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011141052A1 (en) * | 2010-05-11 | 2011-11-17 | Abb Technology Ag | A plant for transmitting high voltage dc electric power including overvoltage protection |
WO2011157305A1 (en) * | 2010-06-14 | 2011-12-22 | Abb Research Ltd | Fault protection of hvdc transmission lines |
CN103004048A (zh) * | 2010-06-14 | 2013-03-27 | Abb研究有限公司 | Hvdc输电线路的故障保护 |
US8749933B2 (en) | 2010-06-14 | 2014-06-10 | Abb Research Ltd | Fault protection of HVDC transmission lines |
CN103004048B (zh) * | 2010-06-14 | 2015-04-15 | Abb研究有限公司 | Hvdc输电线路的故障保护 |
WO2013127438A1 (en) | 2012-02-28 | 2013-09-06 | Abb Technology Ltd | A method and an apparatus for detecting a fault in an hvdc power transmission system |
CN112345882A (zh) * | 2020-10-14 | 2021-02-09 | 云南电网有限责任公司文山供电局 | 一种基于模糊推理系统的快速故障检测方法 |
CN112345882B (zh) * | 2020-10-14 | 2022-10-11 | 云南电网有限责任公司文山供电局 | 一种基于模糊推理系统的快速故障检测方法 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |